Block top - The block number and length from the blockchain (in blocks) on creation of the current block Nonce - The transaction range for that from address (Remember this starts off at 0 so a nonce of a hundred would actually be the 101st transaction submitted by this account) https://indexedbookmarks.com/story20145743/explorer-blockchain-tron-an-overview-https-www-bitsdujour-com-profiles-iptrcw